Loss of toxicity to cattle ticks of a wettable powder formulation of coumaphos.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D004355:Drug Stability; D007306:Insecticides; D013984:Tick Infestations / Q000517:prevention & control / Q000662:veterinary*; D013987:Ticks / Q000187:drug effects*
D007306:Insecticides